The part sticks at first, then corners curl upward off the plate. Bottom is concave when removed.
curlingcorners peeling upbottom not flat
Ordered by how often each is actually responsible, not by how interesting it is. Work down the list.
ABS, ASA, nylon and PC warp open-frame and no setting fixes it. Enclose the printer or switch material — this is physics, not a profile problem.
Reduce or disable the fan for ABS/ASA. Cooling is what pulls the corners up.
Raise the bed. A hot plate keeps the lower layers above their transition point so stress cannot pull them free.
Add a brim, or add mouse-ear discs at the corners. A brim is the cheapest fix on this entire list.
Shrinkage force scales with area. Split the part, or accept a brim.